dax-pay-ui/apps/test-server/service/FileService.ts

import path from 'path'
import fs from 'fs-extra'

const uploadUrl = 'http://localhost:3300/static/upload'
const filePath = path.join(__dirname, '../static/upload/')

fs.ensureDir(filePath)
export default class FileService {
  async upload(ctx, files, isMultiple) {
    let fileReader, fileResource, writeStream

    const fileFunc = function (file) {
      fileReader = fs.createReadStream(file.filepath)
      fileResource = filePath + `/${file.originalFilename}`
      console.log(fileResource)

      writeStream = fs.createWriteStream(fileResource)
      fileReader.pipe(writeStream)
    }

    const returnFunc = function (flag) {
      if (flag) {
        let url = ''
        for (let i = 0; i < files.length; i++) {
          url += uploadUrl + `/${files[i].originalFilename},`
        }
        url = url.replace(/,$/gi, '')
        ctx.body = {
          url: url,
          code: 0,
          message: 'upload Success!',
        }
      } else {
        ctx.body = {
          url: uploadUrl + `/${files.originalFilename}`,
          code: 0,
          message: 'upload Success!',
        }
      }
    }
    console.log(isMultiple, files.length)

    if (isMultiple) {
      for (let i = 0; i < files.length; i++) {
        const f1 = files[i]
        fileFunc(f1)
      }
    } else {
      fileFunc(files)
    }
    fs.ensureDir(filePath)
    returnFunc(isMultiple)
  }
}